CN102244903B

CN102244903B - Admission control method and device of relay network

Info

Publication number: CN102244903B
Application number: CN201010178408.XA
Authority: CN
Inventors: 肖登坤; 黄剑
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-05-10
Filing date: 2010-05-10
Publication date: 2014-11-05
Anticipated expiration: 2030-05-10
Also published as: CN102244903A

Abstract

An embodiment of the present invention provides a quasi-access control method for a relay network, in which the first node in the node set receives the access request of the user terminal UE and the open-loop power control parameter of the second node in the node set determining that the UE accesses the first node or the second node in the node set in the uplink direction by acquiring the difference between the second interference and the first interference, and according to the difference between the interference and communication resource conditions, Therefore, the normal communication of the backhaul link between the macro base station and the relay node is guaranteed, and the performance of the system is improved. The embodiment of the present invention also provides a device for quasi-access control of a relay network.

Description

A kind of accurate connection control method and device of junction network

Technical field

The present invention relates to mobile communication technology field, be specifically related to a kind of accurate connection control method and device of junction network.

Background technology

Admission control technique is a kind of radio resource management techniques (Radio ResourceManagement, RRM), it is applicable to user and initiates to connect or switch in access procedure, and accurate access control can ensure the service quality of business, and can provide safeguard for proper communication.

Admission control technique can comprise while initially connecting in access and handoff procedure and accesses two kinds of situations, as network equipment or user terminal (User Equipment, UE) when initiating business request, if this base station institute bearer service can meet the quality requirement of quality of service Qos index, allow this UE to access this base station.

Under the environment of junction network, owing to having double bounce or multi-hop link, if select trunking, can not ensure the proper communication demand of the return link of macro base station and via node, thereby causing connecting to set up unsuccessfully declines with systematic function.

Summary of the invention

The embodiment of the present invention provides a kind of accurate connection control method of junction network, to improve the performance of system.

On the one hand, provide a kind of accurate connection control method of junction network, having comprised:

The open loop power control parameter of the Section Point in access request and the described node set of the first node reception user terminal UE in node set, described node set at least comprises two nodes, described first node is arbitrary node in node set, and described Section Point is arbitrary other nodes except described first node in node set;

When obtaining described UE and access described first node, disturbs first of described Section Point described first node, while accessing Section Point according to UE described in described open loop power control parameter acquiring, disturb second of described first node, and obtain the poor of described the second interference and the first interference;

Described first node, according to the difference of described interference and communication resource situation, determines that described UE accesses first node or the Section Point in described node set on up direction.

On the other hand, provide a kind of accurate connection control method of junction network, having comprised:

First node in node set receives the access request that user terminal UE sends;

Described first node travels through the adjacent cell list of described UE, if failed traversal, and running time-frequency resource number of blocks when described first node obtains business that a node A in described node set carries and can meet quality of service QoS index;

If described first node determines that according to described running time-frequency resource number of blocks described node A meets resource requirement, UE accesses described node A on down direction.

On the other hand, a kind of accurate access device of junction network is provided, the node composition node set in described junction network, described node set at least comprises first node and Section Point, described accurate access device is arranged in the first node of described node set, and described device comprises:

Receiver module, for receiving the open loop power control parameter of the access request of user terminal UE and the Section Point of described node set;

Acquisition module, while accessing described first node for obtaining described UE, disturb first of described Section Point, with described in described open loop power control parameter acquiring for receiving according to described receiver module, disturb second of described first node when UE access Section Point, and obtain described second disturb with first disturb poor;

Processing module, for difference and the communication resource situation of the described interference of obtaining according to described acquisition module, determines that described UE accesses described first node or Section Point at up direction.

On the other hand, a kind of accurate access device of junction network is provided, the node composition node set in described junction network, described node set at least comprises first node and node A, described accurate access device is arranged in the first node of described node set, and described device comprises:

Receiver module one, the access request sending for receiving user terminal UE;

Spider module, receive after described access request for described receiver module one, travel through the adjacent cell list of described UE, failing traversal, obtain business that a node A in described node set carries and can meet the running time-frequency resource number of blocks of quality of service Qos index;

Dispose module, determine that for the described running time-frequency resource number of blocks obtaining according to described spider module described node A meets resource requirement, described UE accesses described node A on down direction.

The embodiment of the present invention is by the open loop power control parameter of the Section Point in access request and the described node set of the first node reception user terminal UE in node set, by obtaining the poor of described the second interference and the first interference, according to the difference of described interference and communication resource situation, determine that described UE accesses first node or the Section Point in described node set on up direction, thereby ensure the proper communication of the return link of macro base station and via node, improved the performance of system.

Brief description of the drawings

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the schematic flow sheet of a kind of accurate connection control method embodiment of junction network;

Fig. 2 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 2 a is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 2 b is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 3 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 3 a is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 4 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 5 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 6 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 7 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 8 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network;

Fig. 9 is a kind of accurate access device structural representation of junction network;

Figure 10 is the another kind of structural representation of a kind of accurate access device of junction network.

Embodiment

In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 1 is the schematic flow sheet of a kind of accurate connection control method embodiment of junction network, comprising:

101, the open loop power control parameter of the Section Point in access request and the described node set of the reception of the first node in node set user terminal UE, described node set at least comprises two nodes, described first node is arbitrary node in node set, and described Section Point is arbitrary other nodes except described first node in node set;

102, when described first node obtains described UE and accesses described Section Point, disturb first of described first node, while accessing first node according to UE described in described open loop power control parameter acquiring, disturb second of described Section Point, and obtain the poor of described the second interference and the first interference;

103, described first node, according to the difference of described interference and communication resource situation, determines that described UE accesses first node or the Section Point in described node set on up direction.

Fig. 2 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, in the present embodiment, describe as an example of the first via node, the second via node and service macro base station example, described the second via node is the higher level via node of described the first via node at up direction, wherein, the Serving cell of UE is service macro base station, and this service macro base station access control on down direction comprises:

201, the first via node and the second via node periodically or Event triggered ground the downlink resource service condition of self is sent to the macro base station of service by Un mouth.

In step 201, this Event triggered can comprise the threshold value that system designs in advance, in the time that the first via node and the second via node surplus resources number are greater than this threshold value, send the downlink resource service condition of this via node to service macro base station, or in the time that the first via node and the second via node surplus resources number are less than this threshold value, send the downlink resource service condition of this via node to service macro base station.

202, UE initiates access request to service macro base station.

203, service macro base station travels through the adjacent cell list of this UE, if service macro base station has traveled through the adjacent cell list of this UE, finishes this flow process, otherwise execution step 204.

In step 203, the service node that this service macro base station travels through in the adjacent cell list of this UE can comprise this service macro base station.

204, service macro base station judges whether the node of current traversal is the first via node, if the node of current traversal is the first via node, performs step 205b, if the node of current traversal is service macro base station, and execution step 205a.

Running time-frequency resource number of blocks when 205a, service macro base station obtain business that this service macro base station carries to the down link of UE and meet QoS index, and serve node that macro base station judges current traversal this service macro base station whether meet first resource demand.

In step 205a, this first resource demand can comprise according to the downlink resource service condition of current traversal service macro base station determines that this service macro base station has vacant resource, this vacant resource running time-frequency resource number of blocks that can provide for the down link of described service macro base station, that described down link is required, and, required running time-frequency resource number of blocks when the business having accessed in this service macro base station can meet the index of QoS.

205b, service macro base station merges the descending return link channel quality of the first via node to the downlink channel quality of UE and described service macro base station to via node, required the second via node running time-frequency resource number of blocks when described service macro base station obtains business that the second via node carries and can meet Qos index, the running time-frequency resource number of blocks of this second via node is that the channel quality of described service macro base station after by described merging obtains, the first via node running time-frequency resource number of blocks when described service macro base station obtains business that described the first via node carries and can meet Qos index, described the first via node running time-frequency resource number of blocks is that described service macro base station obtains by the downlink channel of described the first via node, service macro base station judges whether this first via node meets Secondary resource demand.

Wherein, in step 205b, this Secondary resource demand can comprise that serving macro base station determines that this first via node and this second via node have vacant resource, the vacant resource of this first via node is that service macro base station is determined according to the current downlink resource service condition that is traveling through the first via node, the vacant resource of this first via node comprises can be provided for the down link of this first via node, this the first via node running time-frequency resource quantity that described down link is required, the vacant resource of this second via node is that this service macro base station is determined according to the downlink resource service condition of this second via node, the vacant resource of this second via node comprises can be provided for the descending return link of this second via node, this the second via node running time-frequency resource number of blocks that this descending return link is required, and the business that this first via node has accessed meets Qos index, service macro base station can ensure proper communication demand to the descending return link of described the first via node.

If the node of 206 current traversals can meet the condition of step 205a or step 205b, allow UE to access the node of current traversal, otherwise continue execution step 203.

207, service macro base station sends the notice that allows UE access to UE.

208, UE accesses the node of this current traversal on down direction.

The embodiment of the present invention receives by service macro base station the access request that user terminal UE sends, this service macro base station travels through the adjacent cell list of described UE, if failed traversal, running time-frequency resource number of blocks when this service macro base station obtains business that the first via node carries and can meet quality of service QoS index, this service macro base station determines that according to described running time-frequency resource number of blocks described the first via node meets resource requirement, UE accesses described the first via node on down direction, thereby ensure the proper communication of the return link of macro base station and via node, improve the performance of system.

Fig. 2 a is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, the applicable junction network of the embodiment of the present invention can comprise the first via node, the second via node and a macro base station, the Serving cell of this UE is the first via node, embodiment shown in this embodiment and Fig. 2 is similar, then this repeats no more.

Fig. 2 b is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, in the present embodiment, describe as an example of the first via node, the second via node and service macro base station example, described the second via node is that second on down direction jumped via node, described the first via node is the superior node of described the second via node up direction, described service macro base station is the superior node in up side's direction on the first via node, and this service macro base station access control on down direction comprises:

2b1, the first via node and the second via node periodically or Event triggered ground the downlink resource service condition of self is sent to the macro base station of service by Un mouth.

In step 2b1, this Event triggered can comprise the threshold value that system designs in advance, in the time that the first via node and the second via node surplus resources number are greater than this threshold value, send the downlink resource service condition of this via node to service macro base station, or in the time that the first via node and the second via node surplus resources number are less than this threshold value, send the downlink resource service condition of this via node to service macro base station.

2b2, UE initiate access request to service macro base station.

2b3, service macro base station travel through the adjacent cell list of this UE, if service macro base station has traveled through the adjacent cell list of this UE, finish this flow process, otherwise execution step 204.

In step 2b3, the service node that this service macro base station travels through in the adjacent cell list of this UE can comprise this service macro base station.

2b4, service macro base station judge whether the node of current traversal is the second via node, if the node of current traversal is the second via node, performs step 2b5b, if the node of current traversal is service macro base station, and execution step 2b5a.

Running time-frequency resource number of blocks when 2b5a, service macro base station obtain business that this service macro base station carries to the down link of UE and meet QoS index, and serve node that macro base station judges current traversal this service macro base station whether meet information resources demand.

In step 2b5a, this information resources demand can comprise according to the downlink resource service condition of current traversal service macro base station determines that this service macro base station has vacant resource, this vacant resource running time-frequency resource number of blocks that can provide for the down link of described service macro base station, that described down link is required, and, required running time-frequency resource number of blocks when the business having accessed in this service macro base station can meet the index of QoS.

2b5b, service macro base station obtain the first merging channel quality, and this first merges channel quality and comprise and merge the downlink channel quality of current the second via node traveling through to UE downlink channel quality, described the first via node to described the second via node and the described service macro base station downlink channel quality to described the first via node, obtain the second merging channel quality with this service macro base station, this second merges channel quality and comprises and merge the downlink channel quality of described the second via node to UE downlink channel quality and the first via node to the second via node, running time-frequency resource number of blocks when this service macro base station is obtained business that this service macro base station carries and met Qos index by the first merging channel quality, this service macro base station is by this second running time-frequency resource number of blocks when merging channel quality and obtaining business that described the first via node carries and meet Qos index, running time-frequency resource number of blocks when this service macro base station is obtained business that this second via node carries and meets Qos index to the downlink channel of this UE by this second via node.Service macro base station judges whether this second via node meets the 4th resource requirement.

Wherein, in step 2b5b, the 4th resource requirement can comprise that serving macro base station determines this second via node, the downlink resource service condition of this first via node and described service macro base station and the running time-frequency resource number of blocks obtaining determine that described the second via node has vacant resource, the vacant resource that this second via node has is this second via node, the down link of the first via node and this service macro base station can provide business required running time-frequency resource number of blocks, and the business that described the second via node has accessed meets Qos index, described the first via node to the down link of described the second via node can ensure normal communication requirement, and described service macro base station to the descending return link of described the first via node can ensure normal communication requirement, and described service macro base station can ensure proper communication demand to the descending return link of described the first via node, UE accesses described the second via node on down direction.

If the node of the current traversal of 2b6 can meet the condition of step 2b5a or step 2b5b, allow UE to access the node of current traversal, otherwise continue execution step 2b3.

2b7, service macro base station send the notice that allows UE access to UE.

2b8, UE access the node of this current traversal on down direction.

The embodiment of the present invention receives by service macro base station the access request that user terminal UE sends, this service macro base station travels through the adjacent cell list of described UE, if failed traversal, running time-frequency resource number of blocks when this service macro base station obtains business that the second via node carries and can meet quality of service QoS index, this service macro base station determines that according to described running time-frequency resource number of blocks described the second via node meets resource requirement, UE accesses described the second via node on down direction, thereby ensure the proper communication of the return link of macro base station and via node, improve the performance of system.

Fig. 3 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, this embodiment is taking a via node and macro base station row explanation in example, the Serving cell of UE is via node, and the access control on down direction of this via node comprises:

301, macro base station periodically or Event triggered ground the downlink resource service condition of other via nodes except described via node under this macro base station and descending return link quality are sent to via node by Un mouth.

In step 301, this Event triggered can comprise the threshold value that system designs in advance, in the time that the surplus resources number of other via nodes under macro base station is greater than this threshold value, send the downlink resource service condition of other via nodes under this macro base station to via node, or in the time that the surplus resources number of other via nodes under macro base station is less than this threshold value, send the downlink resource service condition of other via nodes under this macro base station to via node.In the time that the descending return link quality of other via nodes under macro base station is greater than this threshold value, send the descending return link quality of other via nodes under this macro base station to via node, or in the time that the descending return link quality of other via nodes under macro base station is less than this threshold value, send the descending return link quality of other via nodes under this macro base station to via node.

302, macro base station periodically or Event triggered ground the downlink resource service condition of this macro base station and macro base station are sent to via node to the downlink quality of UE by Un mouth.

In step 302, this Event triggered can comprise the threshold value that system designs in advance, in the time that the surplus resources number of macro base station is greater than this threshold value, send the downlink resource service condition of this macro base station to via node, or in the time that macro base station surplus resources number is less than this threshold value, send the downlink resource service condition of this macro base station to via node.

303, UE initiates the request of access to via node.

304, via node travels through the adjacent cell list of this UE, if via node has traveled through the adjacent cell list of this request access UE, finishes this flow process, otherwise execution step 305.

305, whether the node in the current traversal adjacent cell list of relay node judges is macro base station, if the node of current traversal is macro base station, performs step 306a, if the node of current traversal is not macro base station, and execution step 306b.

Required running time-frequency resource number of blocks when 306a, described via node are obtained the business of carrying at described via node and can meet Qos index to the downlink channel of UE by described macro base station, whether this via node of relay node judges meets information resources demand;

Wherein, in step 306a, this information resources demand can comprise that this via node determines that according to the downlink resource service condition of the current macro base station traveling through this macro base station has vacant resource, the running time-frequency resource number of blocks that can provide for the down link of macro base station, described down link is required is provided this vacant resource, and the business that described macro base station has connect meets QoS index.

306b, via node merge the current via node traveling through and arrive to the downlink channel quality of UE and macro base station the descending return link channel quality of this via node, this via node running time-frequency resource number of blocks when via node obtains business that this via node carries and can meet Qos index, this via node running time-frequency resource number of blocks is that this via node obtains to the downlink channel of UE by this via node, and whether this via node of relay node judges meets the 4th resource requirement.

Wherein, in step 306b, the 4th resource requirement can comprise, this via node determines that this via node has vacant resource, the vacant resource of this via node is that this via node is determined according to the downlink resource service condition of the current via node traveling through, the running time-frequency resource number of blocks that can provide for the down link of via node, described down link is required is provided this vacant resource, and the business that described via node has connect meets QoS index.

If the node of 307 these current traversals can meet the condition of step 306a or step 306b, allow UE to access the via node of this current traversal, otherwise continue execution step 304.

308, via node sends the notice that allows UE access to UE.

309, UE accesses the node of current traversal on down direction.

The embodiment of the present invention receives by via node the access request that user terminal UE sends, this via node travels through the adjacent cell list of described UE, if failed traversal, running time-frequency resource number of blocks when this via node obtains business that the first via node carries and can meet quality of service QoS index, this service macro base station determines that according to described running time-frequency resource number of blocks described the first via node meets resource requirement, UE accesses described the first via node on down direction, thereby ensure the proper communication of the return link of macro base station and via node, improve the performance of system.

Fig. 3 a is the schematic flow sheet of accurate another embodiment of Access Control Technique method of junction network, in the present embodiment, describe as an example of a via node and one service macro base station example, wherein, the Serving cell of UE is service macro base station, embodiment shown in descending admittance control method shown in this embodiment and Fig. 3 is similar, does not repeat them here.

Fig. 4 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, and in the present embodiment, the Serving cell of UE is that example describes for serving macro base station, and the accurate connection control method on up direction of this service macro base station comprises:

401, via node periodically or Event triggered ground the ascending resource service condition of this via node is sent to service macro base station by Un mouth;

In step 401, this Event triggered can comprise the threshold value that system designs in advance, for example, in the time that via node surplus resources number is greater than this threshold value, send the ascending resource service condition of this via node to service macro base station, or in the time that via node surplus resources number is less than this threshold value, send the ascending resource service condition of this via node to service macro base station.

402, via node sends to service macro base station the open loop power control parameter that this via node is supported;

Wherein, open loop power control parameter can be P _{o_PUSCH}with α be the open loop parameter of required transmission, represent respectively Initial Trans and road loss compensation factor, open loop power parameter is used for calculating open loop power, open loop power formula is as follows:

P _PUSCH＝min{P _CMAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL}

Wherein P _cMAXcan be UE maximum transmission power, PL can be path loss, M _pUSCHcan be for sending bandwidth.

Wherein, step 401,402 order in no particular order.

403, UE initiates the request of access to service macro base station.

404, the service macro base station interference to service macro base station and this UE access service macro base station interference to via node according to this UE of this open loop power control parameter acquiring access via node is poor;

Wherein, after UE access via node, the interference that service macro base station is caused can be:

I _eNB＝P _RN-PL _eNB

Wherein, I _eNBcan be the interference of UE access via node to service macro base station, P _rNcan access via node for UE time, the up open loop transmitted power of UE, PL _eNBcan be for user be to the path loss of service macro base station node.

Wherein, the interference that UE access service macro base station causes via node can be:

I _RN＝P _eNB-P _LRN

Wherein, I _rNcan be the interference of UE access service macro base station to via node, P _eNBcan be UE access service macro base station time, the up open loop transmitted power of UE, PL _rNcan be for user be to the path loss of via node.

Wherein, the difference of this interference can be:

ΔI＝I _eNB-I _RN＝(P _RN-P _eNB)-(PL _eNB-PL _RN)

Wherein, what Δ I can be for the interference of UE access via node to service macro base station and the interference of UE access service macro base station to via node is poor, i.e. I _eNBwith I _eNBpoor.

If 405a UE access via node to the service interference of macro base station and the difference of the interference of UE access service macro base station to via node be less than zero, up return link can ensure that proper communication demand and via node have vacant resource, allow user to select via node access, execution step 406a.

406a, serve grand base base station to UE send allow access via node notice, execution step 407a.

407a, on up direction described first node of access.。

If 405b UE access via node to the service interference of macro base station and the difference of the interference of UE access service macro base station to via node be greater than zero, up return link can not ensure proper communication demand, but, service macro base station has vacant resource, allow UE to select the access of service macro base station, execution step 406b, otherwise execution step 408;

406b, service macro base station send the notice that allows UE access to UE, execution step 407b.

407b, on up direction described first node of access.

408, service macro base station sends the notice of refusal UE access to UE.

The embodiment of the present invention is by the open loop power control parameter of the via node in access request and the described node set of the service macro base station reception user terminal UE in node set, by obtaining the poor of described the second interference and the first interference, according to the difference of described interference and communication resource situation, determine that described UE accesses via node or the service macro base station in described node set on up direction, thereby ensure the proper communication of the return link of service macro base station and via node, improved the performance of system.

Fig. 5 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, and in the present embodiment, the Serving cell of UE is that via node is that example describes, and the up access control of this via node comprises:

501, macro base station periodically or Event triggered ground the ascending resource service condition of this macro base station is sent to via node by Un mouth;

In step 501, this Event triggered can comprise the threshold value that system designs in advance, for example, in the time that macro base station surplus resources number is greater than this threshold value, send the ascending resource service condition of this macro base station to via node, or in the time that macro base station surplus resources number is less than this threshold value, send the ascending resource service condition of this macro base station to via node.

502, macro base station periodically or Event triggered ground the quality of up return link is sent to via node.

In step 502, this Event triggered can comprise the threshold value that system designs in advance, for example, in the time that the up return link quality of macro base station is greater than this threshold value, send the up return link quality of this macro base station to via node, or in the time that the up return link quality of macro base station is less than this threshold value, send the up return link quality of this macro base station to via node.

503, macro base station sends to via node the open loop power control parameter that this macro base station is supported.

Wherein, P _{o_PUSCH}with α be the open loop parameter of required transmission, represent respectively Initial Trans and road loss compensation factor, this open loop parameter is used for obtaining open loop power, open loop power formula is as follows:

P _PUSCH＝min{P _CMAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL}

Wherein P _{o_PUSCH}with α be the open loop parameter of required transmission, represent respectively Initial Trans and road loss compensation factor, wherein P _cMAXcan be UE maximum transmission power, PL can be path loss, M _pUSCHcan be for sending bandwidth.

Wherein, step 501,502,503 order in no particular order.

504, UE initiates the request of access to via node.

505, according to this UE access macro base station of described open loop power control parameter acquiring, interference and this UE to via node accesses the poor of the interference of via node to macro base station to via node.

Wherein, after UE access via node, the interference that macro base station is caused can be:

I _eNB＝P _RN-PL _eNB

Wherein, I _eNBcan be the interference of UE access via node to macro base station, P _rNcan access via node for UE time, the up open loop transmitted power of UE, PL _eNBcan be for user be to the path loss of macro base station.

Wherein, the interference that UE access macro base station causes via node can be:

I _RN＝P _eNB-P _LRN

Wherein, I _rNcan be the interference of UE access macro base station to via node, P _eNBcan access macro base station for UE time, the up open loop transmitted power of UE, PL _rNcan be for user be to the path loss of via node.

Wherein, the difference of this interference can be:

ΔI＝I _eNB-I _RN＝(P _RN-P _eNB)-(PL _eNB-PL _RN)

Wherein, Δ I can access the poor of the interference of macro base station to via node, i.e. I for interference and the UE of UE access via node to macro base station _eNBwith I _eNBpoor.

If the interference of 506a UE access macro base station to via node and UE access, the difference of the interference of via node to macro base station is greater than zero, up return link can ensure that proper communication demand and via node have vacant resource, allow user to select via node access, execution step 507a;

Wherein, the ascending resource service condition that this vacant resource sends according to macro base station is determined.

507a, via node send the notice that allows access via node to UE, execution step 508a.

508a, UE access described first node on up direction.

If the interference of 506b UE access macro base station to via node and UE access, the difference of the interference of via node to macro base station is less than zero, up return link can not ensure proper communication demand, but, macro base station has vacant resource, allow user to access macro base station, execution step 507b, otherwise execution step 509.

507b, via node send the notice that allows UE access to UE, execution step 508b.

508b, UE access described first node on up direction.

509, via node sends the notice of refusal UE access to UE.

The embodiment of the present invention is by the open loop power control parameter of the macro base station in access request and the described node set of the via node reception user terminal UE in node set, by obtaining the poor of described the second interference and the first interference, according to the difference of described interference and communication resource situation, determine that described UE accesses via node or the macro base station in described node set on up direction, thereby ensure the proper communication of the return link of macro base station and via node, improved the performance of system.

Fig. 6 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, in this embodiment, the embodiment shown in Fig. 2 can be combined with the embodiment shown in Fig. 4.This embodiment is only an embodiment of the present invention, and based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 7 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, in this embodiment, the embodiment shown in Fig. 3 can be combined with the embodiment shown in Fig. 4.This embodiment is only an embodiment of the present invention, and based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 8 is the schematic flow sheet of a kind of accurate another embodiment of connection control method of junction network, and this embodiment comprises:

801, the first node in node set receives the access request that user terminal UE sends;

802, described first node travels through the adjacent cell list of described UE, if failed traversal, and running time-frequency resource number of blocks when described first node obtains business that a node A in described node set carries and can meet quality of service QoS index;

If 803 described first nodes determine that according to described running time-frequency resource number of blocks described node A meets resource requirement, UE accesses described node A on down direction.

Fig. 9 is a kind of accurate access device structural representation of junction network, node composition node set in described junction network, described node set at least comprises first node and Section Point, and described accurate access device is arranged in the first node of described node set, and described device comprises:

Receiver module 901, for receiving the open loop power control parameter of the access request of user terminal UE and the Section Point of described node set;

Acquisition module 902, while accessing described first node for obtaining described UE, disturb first of described Section Point, with described in described open loop power control parameter acquiring for receiving according to described receiver module, disturb second of described first node when UE access Section Point, and obtain described second disturb with first disturb poor;

Processing module 903, for difference and the communication resource situation of the described interference of obtaining according to described acquisition module, determines that described UE accesses described first node or Section Point at up direction.

Wherein, when described acquisition module accesses described Section Point specifically for obtaining described UE by formula (1), disturb I to first of described first node ₁:

I ₁=P ₂-PL ₁(formula 1)

With for according to disturbing I to second of described Section Point when UE access first node described in described open loop power control parameter acquiring ₂:

I ₂=P ₁-PL ₂(formula 2)

With for obtain by formula (3) described second disturb with first disturb difference Δ I:

Δ I=I ₂-I ₁formula (3)

I ₁while accessing described first node for UE, disturb I to first of described Section Point ₂during for UE access Section Point, disturb P to second of described first node ₂while accessing described Section Point for UE, the up open loop transmitted power of UE, described P ₂according to the open loop power control parameter acquiring receiving, PL ₁for UE is to the path loss of described first node, P ₁while accessing described first node for UE, the up open loop transmitted power of UE, PL ₂for UE is to the path loss of described Section Point, Δ I is the poor of the second interference and the first interference.

Wherein, described acquisition module is specifically for obtaining P according to open loop power control parameter by formula (4) ₂:

P ₂＝min{P _CMAX，10log ₁₀(M ₂(i))+P _{O_PUSCH_2}(j)+α ₂·PL ₂}(4)

Wherein, P _{o_PUSCH_2}and α ₂the open loop power control parameter of described Section Point, P _cMAXfor UE maximum transmission power, M ₂for the transmission bandwidth of described Section Point.

Wherein, described processing module is greater than at 1 o'clock specifically for the difference of the described interference of obtaining at described acquisition module, macro base station and the descending first up return link of jumping via node can not ensure proper communication demand, but when described first node has vacant resource, determine that described UE accesses described first node on up direction.

Further, described receiver module is also for receiving the ascending resource service condition of described other nodes except first node;

Described processing module is specifically for being macro base station at described Section Point, the difference of described interference is less than zero, and described Section Point has vacant resource, described vacant resource is to determine according to the ascending resource service condition of described Section Point, and described UE accesses described Section Point on up direction; Or be via node at described Section Point, the difference of described interference is less than zero, described Section Point can ensure that to the up return link of macro base station proper communication demand and described Section Point have vacant resource, described vacant resource is to determine according to the ascending resource service condition of described Section Point, and described UE accesses described Section Point on up direction.

Further, the node set in described junction network, except described first node, also comprises node A;

The access request that described receiver module also sends for receiving user terminal UE;

Described acquisition module also receives after access request for receiver module, travel through the adjacent cell list of described UE, if failed traversal, the running time-frequency resource number of blocks when obtaining business that a node A in described node set carries and can meeting quality of service Qos index;

Described processing module also determines that for the described running time-frequency resource number of blocks obtaining according to described acquisition module described node A meets resource requirement, and described UE accesses described node A on down direction.

Wherein, if described first node is service macro base station, described node A is described service macro base station; Or

Described first node is via node, and described node A is macro base station;

Described acquisition module is specifically for being obtained the business of carrying at described first node and can meet the time required frequency Resource Block quantity of Qos index to the downlink channel of UE by described node A;

Described receiver module is the downlink resource service condition information of other nodes except described first node for receiving node set also;

Described processing module is specifically for determining that according to the downlink resource service condition of the current described node A traveling through described node A has vacant resource at described first node, the running time-frequency resource number of blocks that can provide for the down link of described node A, described down link is required is provided described vacant resource, and the business that described node A has accessed meets Qos index, UE accesses described node A on down direction; Or

Further, also comprise Node B in described node set, described first node is via node, and described node A is described via node, and described Node B is macro base station; Or described first node is via node, described node A is another via node, and described Node B is macro base station;

Described acquisition module is specifically for merging the channel quality of down link of the node A to UE in described node set and the macro base station channel quality to the descending return link of described node A, required Node B time-frequency money resource quantity when obtaining business that described Node B carries and can meet QoS index, the running time-frequency resource number of blocks of described Node B is that the channel quality of described first node after by described merging obtains, node A running time-frequency resource number of blocks when obtaining business that described node A carries and can meet Qos index, described node A running time-frequency resource number of blocks is that described first node obtains to the downlink channel of UE by described node A,

Described receiver module is the downlink resource service condition information of other nodes except described first node for receiving node set also,

Described processing module is specifically for having vacant resource at the superior node B that determines the described node A of institute and described node A, the vacant resource of described node A is that described first node is determined according to the downlink resource service condition of the current described node A traveling through in the described node set of described receiver module reception, the vacant resource of described node A comprises can be provided for the down link of described node A, the node A running time-frequency resource number of blocks that described down link is required, the vacant resource of described Node B is that described first node is determined according to the downlink resource service condition of described Node B, the vacant resource of described Node B comprises can be provided for the descending return link of described Node B, the Node B running time-frequency resource number of blocks that described descending return link is required, and the business that described node A has accessed meets Qos index, macro base station can ensure proper communication demand to the descending return link of described node A, UE accesses described node A on down direction,

Further, in described node set, also comprise Node B and node C, in described node set, at least comprise double bounce via node, described node A in described node set is that second on down direction jumped via node, described Node B is the superior node of described node A at up direction, the superior node at up direction that described node C is Node B;

Described acquisition module is specifically for obtaining the first merging channel quality, and described first merges channel quality comprises described current node A to the UE downlink channel quality traveling through that merges in described node set, the Node B downlink channel quality to the downlink channel quality of described node A and node C to described Node B; With specifically for obtaining the second merging channel quality, described second merges channel quality comprises described node A to the UE downlink channel quality that merges in described node set and the described Node B downlink channel quality to described node A; With the running time-frequency resource number of blocks when merging channel quality and obtain business that described node C carries and meet QoS index by described first, running time-frequency resource number of blocks when merging channel quality and obtain business that described Node B carries and meet QoS index by described second, is obtained business that described node A carries and meets the running time-frequency resource number of blocks of Qos index to the downlink channel of described UE by described node A;

Described processing module is specifically for according to described node A, the downlink resource service condition of described Node B and described node C and the running time-frequency resource number of blocks obtaining determine that described node A has vacant resource, it is described node A that described node A has vacant resource, the down link of described Node B and described node C can provide business required running time-frequency resource number of blocks, and the business that described node A has accessed meets Qos index, described Node B to the down link of described node A can ensure normal communication requirement, and the described node C extremely descending return link of described Node B can ensure proper communication demand, described UE accesses described node A on down direction.

Figure 10 is a kind of accurate access device structural representation of junction network, node composition node set in described junction network, described node set at least comprises first node and node A, and described accurate access device is arranged in the first node of described node set, and described device comprises:

Receiver module 1, the access request sending for receiving user terminal UE;

Spider module 1002, receive after described access request for described receiver module one, travel through the adjacent cell list of described UE, failing traversal, obtain business that a node A in described node set carries and can meet the running time-frequency resource number of blocks of quality of service Qos index;

Dispose module 1003, determine that for the described running time-frequency resource number of blocks obtaining according to described spider module described node A meets resource requirement, described UE accesses described node A on down direction.

Wherein, in the device shown in Figure 10, if described first node is service macro base station, described node A is described service macro base station; Or described first node is via node, described node A is macro base station;

Described spider module is specifically for being obtained the business of carrying at described first node and can meet the time required frequency Resource Block quantity of Qos index to the downlink channel of UE by described node A;

Further, the also downlink resource service condition information of other nodes except described first node for the set of described first node receiving node of described receiver module one;

Described disposal module determines that specifically for the downlink resource service condition of the current described node A traveling through that receives according to described receiver module one described node A has vacant resource, the running time-frequency resource number of blocks that can provide for the down link of described node A, described down link is required is provided described vacant resource, and the business that described node A has accessed meets Qos index, UE accesses described node A on down direction.

Further, in the device shown in Figure 10, described node set also comprises Node B, if described first node is via node, described node A is described via node, and described Node B is macro base station; If or described first node is via node, described node A is another via node, described Node B is macro base station;

Described spider module is specifically for merging the channel quality of down link of the node A to UE in described node set and the macro base station channel quality to the descending return link of described node A, required Node B time-frequency money resource quantity when obtaining business that described Node B carries and can meet QoS index, the running time-frequency resource number of blocks of described Node B is that the channel quality of described first node after by described merging obtains, node A running time-frequency resource number of blocks when obtaining business that described node A carries and can meet Qos index, described node A running time-frequency resource number of blocks is that described first node obtains to the downlink channel of UE by described node A,

Described receiver module one is the downlink resource service condition information of other nodes except described first node for receiving node set also;

Described disposal module is specifically for having vacant resource at the superior node B that determines the described node A of institute and described node A, the vacant resource of described node A is that the downlink resource service condition of the current described node A traveling through in the described node set that receives according to described receiver module one of described first node is determined, the vacant resource of described node A comprises can be provided for the down link of described node A, the node A running time-frequency resource number of blocks that described down link is required, the vacant resource of described Node B is that described first node is determined according to the downlink resource service condition of described Node B, the vacant resource of described Node B comprises can be provided for the descending return link of described Node B, the Node B running time-frequency resource number of blocks that described descending return link is required, and the business that described node A has accessed meets Qos index, macro base station can ensure proper communication demand to the descending return link of described node A, UE accesses described node A on down direction.

Further, in device shown in Figure 10, described node set also comprises Node B and node C, in described node set, at least comprise double bounce via node, described node A in described node set is that second on down direction jumped via node, described Node B is the superior node at up direction of described node A, the superior node at up direction that described node C is Node B;

Described spider module is specifically for obtaining the first merging channel quality, and described first merges channel quality comprises described current node A to the UE downlink channel quality traveling through that merges in described node set, the Node B downlink channel quality to the downlink channel quality of described node A and node C to described Node B; With specifically for obtaining the second merging channel quality, described second merges channel quality comprises described node A to the UE downlink channel quality that merges in described node set and the described Node B downlink channel quality to described node A; With the running time-frequency resource number of blocks when merging channel quality and obtain business that described node C carries and meet QoS index by described first, running time-frequency resource number of blocks when merging channel quality and obtain business that described Node B carries and meet QoS index by described second, is obtained business that described node A carries and meets the running time-frequency resource number of blocks of Qos index to the downlink channel of described UE by described node A;

Described disposal module is specifically for according to described node A, the downlink resource service condition of described Node B and described node C and the running time-frequency resource number of blocks obtaining determine that described node A has vacant resource, it is described node A that described node A has vacant resource, the down link of described Node B and described node C can provide business required running time-frequency resource number of blocks, and the business that described node A has accessed meets Qos index, described Node B to the down link of described node A can ensure normal communication requirement, and the described node C extremely descending return link of described Node B can ensure proper communication demand, described UE accesses described node A on down direction.

Device shown in the embodiment of the present invention goes for carrying out said method embodiment.

By the description of above each embodiment, those skilled in the art can be well understood to the present invention and can realize by the mode of software and essential general hardware platform, certainly, also can pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method that each embodiment of the present invention is somebody's turn to do.

Although pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and described, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims

1. A quasi-access control method for a relay network, comprising:

The first node in the node set receives the access request of the user terminal UE and the open-loop power control parameters of the second node in the node set, the node set includes at least two nodes, and the first node is a node set any one of the nodes, the second node is any other node in the node set except the first node;

The first node acquires the first interference to the first node when the UE accesses the second node, and acquires the first interference to the first node when the UE accesses the first node according to the open-loop power control parameter. the second interference of the second node, and obtain the difference between the second interference and the first interference;

The first node determines that the UE accesses the first node or the second node in the node set in the uplink direction according to the interference difference and communication resource conditions;

Wherein, the first node acquires the first interference I ₁ to the first node when the UE accesses the second node, and is calculated by formula (1):

I ₁ =P ₂ -PL ₁ (1)

The first node acquires the second interference I ₂ to the second node when the UE accesses the first node according to the open-loop power control parameter, and is calculated by formula (2):

I ₂ =P ₁ -PL ₂ (2)

I ₁ is the first interference to the first node when the UE accesses the second node; I ₂ is the second interference to the second node when the UE accesses the first node; P ₂ is the UE When accessing the second node, the uplink open-loop transmission power of the UE, the _P2 is obtained according to the received open-loop power control parameters; _PL1 is the path loss from the UE to the first node; _P1 is the UE When accessing the first node, the uplink open-loop transmission power of the UE; PL ₂ is the path loss from the UE to the second node;

Wherein, the first node determines that the UE accesses the first node or the second node in the node set in the uplink direction according to the interference difference and communication resource conditions, including:

If the interference difference is greater than zero, the uplink backhaul link between the macro base station and the downlink first-hop relay node cannot guarantee normal communication requirements, but the first node has spare resources, then the UE in the uplink direction accessing the first node;

or,

The first node receives the uplink resource usage of any other node except the first node; if the second node is a macro base station, the interference difference is less than zero, and the second The node has spare resources, and the spare resources are determined according to the uplink resource usage of the second node, then the UE accesses the second node in the uplink direction; or, if the second node is a In the following node, the interference difference is less than zero, the uplink backhaul link from the second node to the macro base station can guarantee normal communication requirements, and the second node has spare resources, and the spare resources are based on the first If the uplink resource usage of the two nodes is determined, the UE accesses the second node in the uplink direction;

Wherein, the method further includes: the first node in the node set receives the access request sent by the user terminal UE;

The first node traverses the neighbor cell list of the UE, and if the traversal fails to complete, the first node obtains the time-frequency resource when the service carried by a node A in the node set can meet the quality of service QoS index number of blocks;

If the first node determines that the node A meets the resource requirement according to the number of time-frequency resource blocks, the UE accesses the node A in the downlink direction.

2. The method of claim 1, wherein,

The obtained difference ΔI of the interference is calculated by formula (3):

△I＝I ₂ -I ₁ formula (3)

ΔI is the difference between the second disturbance and the first disturbance.

3. The method according to claim 1, wherein the acquisition of _P2 according to the received open-loop power control parameters comprises:

P ₂ ＝min{P _CMAX ,10log ₁₀ (M ₂ (i))+P _{O_PUSCH_2} (j)+α ₂ ·PL ₂ } (4)

Wherein, _{PO_PUSCH_2} and _α2 are the open-loop power control parameters of the second node, _PCMAX is the maximum transmission power of the UE, and _M2 is the transmission bandwidth of the second node.

4. The method of claim 1, wherein,

If the first node is a relay node, the node A is the relay node, and the node B is a macro base station; or

If the first node is a relay node, the node A is another relay node, and the node B is a macro base station;

The first node obtains the number of time-frequency resource blocks when the service carried by a node A in the node set can meet the quality of service QoS index, including:

The first node combines the channel quality of the downlink from node A to the UE in the node set and the channel quality of the downlink backhaul link from the macro base station to the node A;

The first node acquires the number of time-frequency resource blocks of Node B required when the service carried by the Node B can meet the QoS index, and the number of time-frequency resource blocks of the Node B is the number of time-frequency resource blocks of the Node B through the combined channel For quality acquisition, the first node acquires the number of time-frequency resource blocks of node A when the service carried by the node A can meet the Qos index, and the number of time-frequency resource blocks of node A is the number of time-frequency resource blocks of the first node through the Acquired by the downlink channel from node A to UE;

The first node determines that the node A meets the resource requirement according to the number of time-frequency resource blocks, and then the UE accesses the node A in the downlink direction, including:

The first node receives downlink resource usage information of other nodes in the node set except the first node;

If the first node determines that the node A and the node B have spare resources, the spare resources of the node A are the downlink resources of the node A currently being traversed by the first node according to the set of nodes As determined by the usage situation, the vacant resources of the node A include the number of time-frequency resource blocks of the node A required for the downlink that can be provided for the downlink of the node A, and the vacant resources of the node B are the determined by the first node according to the downlink resource usage of the Node B, and the spare resources of the Node B include the downlink backhaul link that can be provided for the Node B and the downlink backhaul link required The number of time-frequency resource blocks of Node B, and the services that Node A has accessed meet the Qos index, and the downlink backhaul link from the macro base station to Node A can guarantee normal communication requirements, then the UE accesses the Node A.

5. The method of claim 1, wherein,

The first node is a serving macro base station, and the node A is the serving macro base station; or

The first node is a relay node, and the node A is a macro base station;

The first node obtains the number of time-frequency resource blocks required when the service carried by the first node can meet the Qos index through the downlink channel from the node A to the UE;

If the first node determines that the node A has spare resources according to the downlink resource usage of the node A currently being traversed, the spare resources include the downlink resources that can be provided for the downlink of the node A. The number of time-frequency resource blocks required by the link, and the services accessed by the node A meet the Qos index, then the UE accesses the node A in the downlink direction.

6. The method of claim 4, wherein,

The set of nodes includes at least two hop relay nodes, the node A in the set of nodes is the second hop relay node in the downlink direction, and the set of nodes also includes nodes B and C, the Node B is the upper-level node of the node A in the uplink direction, and the node C is the upper-level node of the node B in the uplink direction;

The first node acquires a first combined channel quality, where the first combined channel quality includes combining the downlink channel qualities of the node A to the UE currently being traversed in the node set, and the node B to the UE The downlink channel quality of the node A and the downlink channel quality from the node C to the node B;

The first node obtains a second combined channel quality, and the second combined channel quality includes combining the downlink channel quality from the node A to the UE in the node set and the downlink channel quality from the node B to the node A link channel quality;

The first node obtains the number of time-frequency resource blocks when the service carried by the node C meets the QoS index through the first combined channel quality, and the first node obtains the number of time-frequency resource blocks of the node C through the second combined channel quality The number of time-frequency resource blocks when the service carried by B satisfies the QoS index, and the first node obtains the time when the service carried by the node A satisfies the QoS index through the downlink channel from the node A to the UE The number of frequency resource blocks;

If the first node determines that the node A has spare resources according to the downlink resource usage of the node A, the node B, and the node C and the number of time-frequency resource blocks obtained, the node A has spare resources The resources are the number of time-frequency resource blocks required by the downlinks of the node A, the node B, and the node C to provide services, and the services accessed by the node A meet the Qos index, and the node B The downlink to the node A can guarantee the normal communication requirement, and the downlink backhaul link from the node C to the node B can guarantee the normal communication requirement, then the UE accesses the node A in the downlink direction.

7. A quasi-access control method for a relay network, comprising:

The first node in the node set receives the access request sent by the user terminal UE;

If the first node determines that the node A meets the resource requirement according to the number of time-frequency resource blocks, the UE accesses the node A in the downlink direction;

Wherein, the first node is a serving macro base station, and the node A is the serving macro base station; or

The first node is a relay node, and the node A is a macro base station;

8. The method of claim 7, wherein,

9. The method of claim 8, wherein

10. A quasi-access device for a relay network, wherein the nodes in the relay network form a node set, the node set includes at least a first node and a second node, and the quasi-access device is located at In the first node of the node set, the device includes:

a receiving module, configured to receive an access request of a user terminal UE and an open-loop power control parameter of a second node in the set of nodes;

An obtaining module, configured to obtain the first interference to the first node when the UE accesses the second node, and to obtain the first interference of the UE connected to the first node according to the open-loop power control parameter received by the receiving module. second interference to the second node when entering the first node, and obtain a difference between the second interference and the first interference;

A processing module, configured to determine that the UE accesses the first node or the second node in the uplink direction according to the interference difference and communication resource conditions obtained by the obtaining module;

Wherein, the obtaining module is specifically configured to obtain the first interference I ₁ to the first node when the UE accesses the second node through formula (1):

I ₁ =P ₂ -PL ₁ (Formula 1)

and used to obtain the second interference I ₂ to the second node when the UE accesses the first node according to the open-loop power control parameter:

I ₂ =P ₁ -PL ₂ (Formula 2)

Wherein, the processing module is specifically configured to, when the interference difference obtained by the obtaining module is greater than zero, the uplink backhaul link between the macro base station and the downlink first-hop relay node cannot guarantee normal communication requirements, but the When the first node has free resources, determine that the UE accesses the first node in the uplink direction; or,

The receiving module is configured to receive the uplink resource usage of other nodes in the node set except the first node; the processing module is specifically configured to use the second node as a macro base station, and the interference The difference is less than zero, and the second node has spare resources, and the spare resources are determined according to the uplink resource usage of the second node, then the UE accesses the second node in the uplink direction; Or when the second node is a relay node, the interference difference is less than zero, the uplink backhaul link from the second node to the macro base station can guarantee normal communication requirements, and the second node has spare resources, The vacant resource is determined according to the uplink resource usage of the second node, and the UE accesses the second node in the uplink direction;

The set of nodes in the relay network includes node A in addition to the first node,

The receiving module is also configured to receive an access request sent by a user terminal UE;

The obtaining module is also used for traversing the neighbor cell list of the UE after the receiving module receives the access request, and if the traversal fails to complete, obtain a service carried by a node A in the node set that can meet the service requirements. The number of time-frequency resource blocks when the quality Qos index is used;

The processing module is further configured to determine that the node A meets the resource requirement according to the number of time-frequency resource blocks acquired by the acquiring module, and then the UE accesses the node A in the downlink direction.

11. The apparatus of claim 10, wherein:

The obtaining module is also used to obtain the difference ΔI between the first interference and the second interference by formula (3):

△I＝I ₂ -I ₁ formula (3)

Wherein, ΔI is the difference between the second disturbance and the first disturbance.

12. The apparatus of claim 10, wherein:

The acquisition module is specifically used to acquire _P2 through formula (4) according to the open-loop power control parameters:

13. The apparatus of claim 10, wherein:

If the first node is a serving macro base station, the node A is the serving macro base station; or

The first node is a relay node, and the node A is a macro base station;

The obtaining module is specifically configured to obtain the number of frequency resource blocks required when the service carried by the first node can meet the Qos index through the downlink channel from the node A to the UE;

The receiving module is also used to receive downlink resource usage information of other nodes in the node set except the first node;

The processing module is specifically configured to determine, at the first node, that the node A has spare resources according to the downlink resource usage of the node A currently being traversed, and the spare resources include downlink resources that can be the downlink of the node A. The number of time-frequency resource blocks required by the downlink provided by the channel, and the service that the node A has accessed meets the Qos index, then the UE accesses the node A in the downlink direction; or

The set of nodes further includes a node B, the first node is a relay node, the node A is the relay node, and the node B is a macro base station; or the first node is a relay node, The node A is another relay node, and the node B is a macro base station;

The obtaining module is specifically configured to combine the channel quality of the downlink from node A to the UE in the node set and the channel quality of the downlink backhaul link from the macro base station to the node A, and obtain the channel quality of the downlink from the node B. The number of time-frequency resource blocks of the Node B required when the service carried can meet the QoS index, the number of time-frequency resource blocks of the Node B is obtained by the first node through the combined channel quality, and the obtained The number of time-frequency resource blocks of node A when the service carried by node A can meet the Qos index, the number of time-frequency resource blocks of node A is obtained by the first node through the downlink channel from node A to UE;

The processing module is specifically configured to determine that the node A and the upper node B of the node A have free resources, and the free resources of the node A are the node set received by the first node according to the receiving module The downlink resource usage of the node A that is currently traversing is determined, and the free resources of the node A include the time-frequency resources of the node A that can be provided for the downlink of the node A and required by the downlink The number of blocks, the vacant resource of the Node B is determined by the first node according to the downlink resource usage of the Node B, and the vacant resource of the Node B includes The number of time-frequency resource blocks of Node B required for the downlink backhaul link, and the services accessed by the node A meet the Qos index, and the downlink backhaul link from the macro base station to the node A can be guaranteed to be normal communication requirements, the UE accesses the node A in the downlink direction;

or

The node set also includes node B and node C, and the node set includes at least two hop relay nodes, and the node A in the node set is the second hop relay node in the downlink direction, so The node B is the upper-level node of the node A in the uplink direction, and the node C is the upper-level node of the node B in the uplink direction;

The obtaining module is specifically configured to obtain a first combined channel quality, where the first combined channel quality includes combining the downlink channel qualities of the node A to UE currently being traversed in the node set, and the node B to UE downlink channel quality. The downlink channel quality of the node A and the downlink channel quality from the node C to the node B; and specifically used to obtain a second combined channel quality, the second combined channel quality includes combining the The downlink channel quality from the node A to the UE and the downlink channel quality from the node B to the node A; and specifically used to obtain the service carried by the node C through the first combined channel quality The number of time-frequency resource blocks when the QoS indicator is met, the number of time-frequency resource blocks when the service carried by the node B is obtained through the second combined channel quality when the QoS indicator is met, and the downlink from the node A to the UE The link channel obtains the number of time-frequency resource blocks whose services carried by the node A meet the Qos index;

The processing module is specifically configured to determine that the node A has free resources according to the downlink resource usage of the node A, the node B, and the node C and the obtained number of time-frequency resource blocks, and the node A has The free resources are the number of time-frequency resource blocks required for the downlinks of the node A, the node B, and the node C to provide services, and the services that the node A has accessed meet the Qos index, and the node A The downlink from B to the node A can guarantee the normal communication requirements, and the downlink backhaul link from the node C to the node B can guarantee the normal communication requirements, then the UE accesses the Node A.

14. A quasi-access device for a relay network, characterized in that the nodes in the relay network form a node set, the node set includes at least the first node and node A, and the quasi-access device is located in the In the first node in the node set, the device includes:

A receiving module 1, configured to receive an access request sent by a user terminal UE;

The traversal module is configured to traverse the neighbor cell list of the UE after the receiving module receives the access request, and obtain a service carried by a node A in the node set that can satisfy The number of time-frequency resource blocks for the quality of service Qos indicator;

A processing module, configured to determine that the node A meets the resource requirement according to the number of time-frequency resource blocks acquired by the traversal module, and then the UE accesses the node A in the downlink direction;

Wherein, if the first node is a serving macro base station, the node A is the serving macro base station; or

The first node is a relay node, and the node A is a macro base station;

The traversal module is specifically configured to obtain the number of frequency resource blocks required when the service carried by the first node can meet the Qos index through the downlink channel from the node A to the UE;

The first receiving module is also used for the first node to receive downlink resource usage information of other nodes in the node set except the first node;

The handling module is specifically configured to determine that the node A has vacant resources according to the downlink resource usage of the node A currently being traversed received by the receiving module 1, and the vacant resources include downlink resources that can be used by the node A. The number of time-frequency resource blocks provided by the link and required by the downlink, and the service accessed by the node A meets the Qos index, then the UE accesses the node A in the downlink direction.

15. The apparatus of claim 14, wherein:

The set of nodes further includes a node B, if the first node is a relay node, the node A is the relay node, and the node B is a macro base station; or if the first node is a relay A node, the node A is another relay node, and the node B is a macro base station;

The traversal module is specifically configured to combine the channel quality of the downlink from node A to the UE in the node set and the channel quality of the downlink backhaul link from the macro base station to the node A, and obtain the channel quality of the downlink from the node B. The number of time-frequency resource blocks of the Node B required when the service carried can meet the QoS index, the number of time-frequency resource blocks of the Node B is obtained by the first node through the combined channel quality, and the obtained The number of time-frequency resource blocks of node A when the service carried by node A can meet the Qos index, the number of time-frequency resource blocks of node A is obtained by the first node through the downlink channel from node A to UE;

The first receiving module is further configured to receive downlink resource usage information of other nodes in the node set except the first node;

The handling module is specifically configured to determine that the node A and the upper node B of the node A have free resources, and the free resources of the node A are the node received by the first node according to the receiving module one. The downlink resource usage of the node A that is currently traversing in the set is determined, and the free resources of the node A include the time and frequency of the node A required for the downlink that can be provided for the downlink of the node A The number of resource blocks, the vacant resource of the Node B is determined by the first node according to the downlink resource usage of the Node B, and the vacant resource of the Node B includes the downlink backhaul link of the Node B The number of time-frequency resource blocks of Node B required for the downlink backhaul link provided, and the service that the node A has accessed meets the Qos index, and the downlink backhaul link from the macro base station to the node A can guarantee For normal communication requirements, the UE accesses the node A in the downlink direction.

16. The apparatus of claim 15, wherein:

The node set also includes node B and node C, the node set includes at least two hop relay nodes, the node A in the node set is the second hop relay node in the downlink direction, the Node B is the upper-level node of the node A in the uplink direction, and the node C is the upper-level node of the node B in the uplink direction;

The traversal module is specifically configured to obtain a first combined channel quality, and the first combined channel quality includes combining the downlink channel qualities of the node A to the UE currently being traversed in the node set, and the node B to the UE. The downlink channel quality of the node A and the downlink channel quality from the node C to the node B; and specifically used to obtain a second combined channel quality, the second combined channel quality includes combining the The downlink channel quality from the node A to the UE and the downlink channel quality from the node B to the node A; and specifically used to obtain the service carried by the node C through the first combined channel quality The number of time-frequency resource blocks when the QoS indicator is met, the number of time-frequency resource blocks when the service carried by the node B is obtained through the second combined channel quality when the QoS indicator is met, and the downlink from the node A to the UE The link channel obtains the number of time-frequency resource blocks whose services carried by the node A meet the Qos index;